This Chinook was all fired up prior to taking off but there was a problem with the rear engine so everything jhad to be shut down and a mechanic called out. He must have fixed the problem as it took off a hour later.

In April 2021, N43CU became Coulson's 5th CH-47D. Originally built as a CH-47C (cn B736 / US FY # 74-22272), it was remanufactured / modified to CH-47D standard in 1990. Interestingly, new c/n M3334 plus new US FY # 90-0182 was assigned to this airfame during the upgrade. Retired by the US Army around 2015, apparently becoming N160BE (not confirmed) with Unical and then N43CU in August 2019 (confirmed). The Edison sticker title suggests the heli had been contracted by the electrical company at the time the picture was taken.

Coulson-Unical's newly painted Chinook returns to San Bernardino Int'l after a test flight. Ex US Army 90-0182 .